During the shutdown, I'd say 90% of the people working in my office building worked from home...maybe even 95%. I would still go into the office on fairly regularly basis.
The landlord set up one door for entry, and a second door for exiting. These were not power doors at the time, so people had to pull on the handle to open them.
So, in effect, they set up a covid-based entry & exit system that ensured that everyone in the building touched the same handle on the same door on the way in (twice, to go through the airlock), and that everyone in the building touched the same handle on the same doors (2x) on the way out. They guaranteed that everyone in the building touched the same 4 pieces of metal every day. W.T.F. Doing nothing would have cut odds of transmission in half. There were no traffic flow problems in our building...no large crowds trying to cram through the doors.
As for me, I always went in the exit, and out the entrance. 99% of the people touched those handles. I touched the handles on the other sides of those doors.
Granted, maybe contact surfaces are not the way covid spreads, but when they did this, contact surface spreading was still a concern.